MARLVEL

Calculator for iPad! vs its rivals

Side-by-side comparison against Calculator for iPad!'s closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

Calculator for iPad!
This App
Basic Calculator: Classic Calc
Nemesis
Triangle Calc A
Contender
iCalc Lite - Calculator
Contender
Calculator HD+ Pro
Contender
Dash Calc: Simple Fast Math
Contender
Cuspart: Unit Converter
Peer
Quick Unit Converter: All in 1
Peer
Unit Converter For Engineers
Peer
Unit Converter Pro
Peer
Core Identity
Developer7th GearMobArtskohei yamaneGilbert Montane Pintosmalltech sarlEnbright LLCMustafa Tolga DALBUDAKMoaaz AfzalAmanuel AbebawOyku Gul Imran
CategoryUtilitiesUtilitiesProductivityUtilitiesUtilitiesUtilitiesUtilitiesProductivityUtilitiesProductivity
PlatformiOSiOSiOSiOSiOSiOS, AndroidiOS, AndroidiOS, AndroidiOS, AndroidiOS, Android
Store Metrics
Rating4.7 / 54.8 / 50.0 / 54.6 / 54.8 / 55.0 / 50.0 / 55.0 / 55.0 / 50.0 / 5
Ratings Count60,8443,0950129930130
PriceFreeFree$0.99Free$3.99$4FreeFreeFreeFree
Release DateJul 30, 2011Apr 13, 2011Aug 21, 2021Nov 15, 2016Sep 30, 2011Nov 16, 2024Nov 5, 2022Nov 19, 2025Sep 25, 2025Jul 12, 2024
Last UpdatedDec 9, 2020Feb 28, 2026Mar 26, 2026Jan 14, 2024Apr 13, 2020Apr 27, 2026Feb 18, 2023Nov 27, 2025Apr 25, 2026Jul 12, 2024
Sentiment & Reviews
Sentiment-----excellentpositivemixed-excellent
Score-----90/10085/10055/100-92/100
Praises-----
  • Minimalist design philosophy avoids intrusive advertisements and recurring monthly subscription costs for users
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  • Extensive collection of unit categories provides a comprehensive tool for diverse professional and academic needs
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  • Extensive unit library and customization options provide utility for professional engineering and academic tasks
  • Clean interface design avoids intrusive advertisements and unnecessary bloatware found in competing conversion tools
Complaints-------
  • Intrusive full-screen advertisements disrupt the user experience and create significant friction during navigation
-
  • Inconsistent currency conversion availability creates confusion regarding the removal of specific national currencies
Requests-------
  • Addition of a standard arithmetic calculator to consolidate basic math needs within the existing interface
-
  • Customizable result separators and saved conversion lists would improve workflow efficiency for frequent users
Strategic Intel
Strengths
  • 75-significant-digit math engine supports professional-grade accuracy requirements
  • Tactile leather-texture UI provides a distinct visual identity on iPad
  • Integrated drawing and notes tab enables hybrid math-and-scratchpad workflows
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  • Minimalist design philosophy reduces cognitive load for daily math tasks
  • Smart History feature increases utility for recurring financial tracking
  • One-time purchase model builds trust with privacy-focused users
  • 400+ unit library provides broad utility for niche engineering segments
  • Offline currency conversion ensures functionality in low-connectivity environments
  • Offline-first architecture enables utility in field-work environments
  • 72-category library provides high utility-density for professional users
  • Offline-first architecture enables use in remote industrial job sites
  • Specialized unit library covers niche industrial metrics missing from general converters
  • Ad-free interface maintains professional focus
  • Clean interface design reduces churn by avoiding intrusive ad-bloat
  • Offline-first architecture ensures utility in field environments
  • Custom unit-saving mechanism embeds the app into specialized professional workflows
Weaknesses
  • Aggressive subscription prompts for basic features drive negative sentiment
  • Lack of graphing or equation-solving modules limits appeal to STEM students
  • Ad-supported model creates friction compared to ad-free engineering alternatives
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  • Premium tier at $4.00 above category median
  • No scientific functions restricts addressable market
  • Limited user base restricts organic discovery velocity
  • Lack of home screen widgets limits daily active usage
  • One-time payment model restricts long-term revenue growth per user
  • Full-screen ad frequency triggers performance degradation
  • Currency data accuracy issues for specific regional denominations
  • Premium tier pricing ($9.99/year) sits above the category median
  • Missing widget integration reduces home screen discoverability
  • Low review volume (56 reviews) limits social proof
  • Premium tier lacks clear value-add differentiation
  • 0.7★ rating gap between platforms suggests inconsistent feature parity
  • No cloud-save functionality despite user requests
Pricingfreemiumfreepaidfreemiumpaidpaidfreemiumfreemiumfreemiumfreemium
MomentumZombie----IntenseZombieMaintenanceMaintenanceZombie
Update Cadence1 versions----5 versions2 versions, 1 majors/6mo, ~1082d avg2 versions, 1 majors/6mo, ~69d avg2 versions, 2 majors/6mo, ~80d avg2 versions, ~631d avg

Compare Calculator for iPad! head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Calculator for iPad!, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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